diff --git a/_locales/en/messages.json b/_locales/en/messages.json
index d4a400b8..fa1f77f2 100644
--- a/_locales/en/messages.json
+++ b/_locales/en/messages.json
@@ -104,6 +104,21 @@
     "description": ""
   },
 
+  "prefs_OptionText_reply_all": {
+    "message": "Reply to All",
+    "description": ""
+  },
+
+  "prefs_OptionText_reply_sender": {
+    "message": "Reply to Sender",
+    "description": ""
+  },
+
+  "prefs_OptionText_reply_type": {
+    "message": "Reply type",
+    "description": ""
+  },
+
   "prefsInfoTitle": {
     "message": "Important Information",
     "description": ""
diff --git a/_locales/it/messages.json b/_locales/it/messages.json
index ab2093a1..021972f7 100644
--- a/_locales/it/messages.json
+++ b/_locales/it/messages.json
@@ -104,6 +104,21 @@
     "description": ""
   },
 
+  "prefs_OptionText_reply_all": {
+    "message": "Rispondi a tutti",
+    "description": ""
+  },
+
+  "prefs_OptionText_reply_sender": {
+    "message": "Rispondi al mittente",
+    "description": ""
+  },
+
+  "prefs_OptionText_reply_type": {
+    "message": "Modalità di riposta",
+    "description": ""
+  },
+
   "prefsInfoTitle": {
     "message": "Informazioni Importanti",
     "description": ""
diff --git a/mzta-background.js b/mzta-background.js
index 9aefe907..f52ab3a5 100644
--- a/mzta-background.js
+++ b/mzta-background.js
@@ -24,7 +24,7 @@ for (let messageTab of messageTabs) {
 }
 
 
-messenger.runtime.onMessage.addListener((message, sender, sendResponse) => {
+messenger.runtime.onMessage.addListener(async (message, sender, sendResponse) => {
     // Check what type of message we have received and invoke the appropriate
     // handler function.
     if (message && message.hasOwnProperty("command")){
@@ -55,8 +55,15 @@ messenger.runtime.onMessage.addListener((message, sender, sendResponse) => {
                 });
                 const paragraphsHtmlString = paragraphs.map(p => p.outerHTML).join("");
                 //console.log('paragraphsHtmlString: ' + paragraphsHtmlString);
+                let prefs = await browser.storage.sync.get({reply_type: 'reply_all'});
+                console.log('reply_type: ' + prefs.reply_type);
+                let replyType = 'replyToAll';
+                if(prefs.reply_type === 'reply_sender'){
+                    replyType = 'replyToSender';
+                }
+                console.log('replyType: ' + replyType);
                 browser.messageDisplay.getDisplayedMessage(message.tabId).then((mailMessage) => {
-                    browser.compose.beginReply(mailMessage.id, "replyToAll", {
+                    browser.compose.beginReply(mailMessage.id, replyType, {
                         type: "reply",
                         body:  paragraphsHtmlString,
                         isPlainText: false,
diff --git a/options/mzta-options.html b/options/mzta-options.html
index b595480e..434b39de 100644
--- a/options/mzta-options.html
+++ b/options/mzta-options.html
@@ -12,7 +12,13 @@
       <input type="number" id="chatgpt_win_width" name="chatgpt_win_width" class="option-input" /> __MSG_prefs_OptionText_chatgpt_win_width__</label><br/>
       <br/>
       <label><input type="text" id="default_sign_name" name="default_sign_name" class="option-input" /> __MSG_prefs_OptionText_default_sign_name__</label><br/>
-      <label><input type="text" id="default_chatgpt_lang" name="default_chatgpt_lang" class="option-input" /> __MSG_prefs_OptionText_default_chatgpt_lang__</label>
+      <label><input type="text" id="default_chatgpt_lang" name="default_chatgpt_lang" class="option-input" /> __MSG_prefs_OptionText_default_chatgpt_lang__</label><br/>
+      <label>
+        <select id="reply_type" name="reply_type" class="option-input">
+          <option value="reply_all">__MSG_prefs_OptionText_reply_all__</option>
+          <option value="reply_sender">__MSG_prefs_OptionText_reply_sender__</option>
+        </select> __MSG_prefs_OptionText_reply_type__
+      </label><br/>
     </div>
     <div id="miczDescription">
       <h1>__MSG_prefsInfoTitle__</h1>
diff --git a/options/mzta-options.js b/options/mzta-options.js
index 41d13a6d..ac1ede31 100644
--- a/options/mzta-options.js
+++ b/options/mzta-options.js
@@ -47,7 +47,9 @@ function restoreOptions() {
           break;
         default:
         if (element.tagName === 'SELECT') {
-          element.value = result[element.id] || '';
+          let default_select_value = '';
+          if(element.id == 'reply_type') default_select_value = 'reply_all';
+          element.value = result[element.id] || default_select_value;
           if (element.value === '') {
             element.selectedIndex = -1;
           }